Why High Wattage Power Supplies Are Stupid
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- čas přidán 10. 08. 2016
- Should you buy a 1200 watt power supply? Nope. Luke explains why...
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"Wattage will never exceed 800w"
RTX 3090: hold my beer
My rtx 3080 master rev 3 go up to 452 watt. Cant w8 and see rtx 4090
RTX 4000 series: UhhuhUhuhUhuhUhuh
Rtx 4090ti at 800W: allow me to introducr myself
@@robinenbernhard welp you got it
Rtx 3000:allow me to introduce myself
The RTX 3090 and 3080 are really power hungry but the other GPUs of the 3000 series are not that power hungry. A 750w psu is enough for 3090
@@goodperson7427 no it's not lmao. Linus himself has talked about how you need a 1000W psu for a 3090. Plz don't talk out your ass.
@@emaadkhan3031 The 3090 package recommends a minimum 700w psu. So most people can get away with their old 750w psu. But using a psu with higher wattage is certainly more efficient. That's why It's recommend to get a 1000w psu for a 3090. Just like the 2080ti which needs minimum 600w psu but people still bought 850w PSUs because it saves power.
@@goodperson7427 no it doesn't you fucking moron. How the hell does a higher wattage power supply draw less power? An 850W and 600W psu will have the same efficiency with the same hardware if they have the same efficiency rating.
The reason a 1000W psu is recommended is because the 3090 is known to have power spikes well above it's rated tdp, and those are known to sometimes even fail to trip a power supplies failsafe. That being said, for a single 3090 I personally wouldn't say anything more than an 850W is really necessary.
@@emaadkhan3031 A PSU running at its max consumes more power.
more watts = more fps in minesweeper
wow. so funny and original.
Charle says u, with the most dead meme as a profile picture
yea because i care enough to change it.
Charle exactly, terrible excuse
LopsidedEdits i have that pic/name since june or so. the meme wasn't dead at the time, although i'm being called out whenever i comment for using a dead meme. i honestly couldn't be bothered to change it, even though i probably should lol
"Wattage will never exceed 800W"
Intel CPUs: watch
RTX 2080 TI: are you challenging me?
@@Robert-ow8bs Rtx 2080 tiTitan: Whaaaat 😏
Depends how much you overclock. My overclocked 1600X @1.435V consumes more power than a stock 10900K.
@@CheapBastard1988 how far did you push it?
@@parleseniortv2685 quad titan rtx setup with a threadripper 3990x and 5 TBS of nvme m.2 SSD storage: "Am about to end this man's whole UNIVERSE
Should you buy a 1200w power supply? Nope. Go straight for the 1500w
ateb3 I found a brand new corsair ax1600i for 100$
@ateb3 nah man: truns out the post got deleted and it was just a random due posting shit
XD NEED MORE FPS IN MINESWEEPER
why 1500w? go straight for the jugular with a 2000w superflower unit
Nah, just built a nuclear reactor straight away
High wattage psus are as unnecessary as the reflectiveness of that tech quickie shirt
YOU TAKE THAT BACK THE SHIRT IS NOTHING BUT PRACTICAL!!!!
The shirt blinds ninjas as they leap out of the shadows. It's the epitome of practicality.
It's called reflectivity you high school dropout
reflectivity and reflectiveness are synonymous...
Got me
It sounds better
Why am I being recommended this in 2020?
Intel: ...
hahaha
@C S wrong! i'm not subscribed to the channel, try again
don't know
Nvidia too.
LTT: 1000+W PSUs are stupid...
VEGA 64 Crossfire + i9 7980xe: Let us introduce ourselfs...
quite pathetic that most of the comments are not about the video, but are about being "first" or "last time I was this early..." or "notification squad" or "OMG WTF only 200 views"
I was looking forward to some discussion of power supply needs and suggestions for systems etc.
Instead...well what we have here.
Guys, please.....
GET A FUCKING LIFE
+James Stewart Your mom.
Alright keep it together there...
+James Stewart same over here, only running a gtx970. if i would have known this a little sooner, i could have bought a modular 550w gold psu :/
rektm90 savage
Tell me what you want to know.
I need 1500W PSUs because they're the best looking ones
Lol right. . .even though many look exactly the same as the 1000's. or 850's. Just paint
+Dillon Lee yea lol
+1
www.corsair.com/en-us/ax1500i-digital-atx-power-supply-1500-watt-fully-modular-psu and
www.corsair.com/en-us/rmx-series-rm1000x-1000-watt-80-plus-gold-certified-fully-modular-psu
look the exact same? TIL, my eyeballs must be playing tricks on me. /s
There's a reason why my statement is so easy to disprove. Think about it before making any more autistic comments, please.
being somone in the eletrical background, if your pc Requires 300Watt. a 600Watt psu power curve is more energy efficient then a 300-400 watt one going full out.
my standard gaming rig pulls 480Watts from the wall. so a 650-700 psu would work and use less power then a 550watt psu
Thanks this sort of answers my question I have been trying to solve. I have the chance at getting a 750i Platinum (cheaper than a 650w), my system should not need over 520 but I keep the computer on 24/7 so was wondering if the 750 would waste power as this would add up over time..
This was a helpful comment.
Thankssss you for this useful info dude.
This is correct, you never want to run any power supply at its full rated wattage for extended periods of time. Generally you want a power supply rated to be 1.25 times the predicted load, preferably more.
This ^
I'm a seasoned Electrical Engineer and understands computer power supplies quite well.
I've worked on everything from industrial controls to military equipment.
When you design something that you want to last forever, you use components that are rated for high power dissipation, but in use, don't ever subject them to their maximum ratings. We call it the "power margin" and as a rule of thumb, you try your best to keep it under 50%. (The more reliability you need, the higher you need the margin to be)
Heat is the #1 reason electronics fail (instantaneous or sustained), and if you have components in your power supply that can easily handle it, your supply will last a long time.
This is why higher rated power supplies are good. They are built to handle much more heat than you will every subject them to, which makes them generally more reliable than lower rated supplies in the long run.
That is not to say all high power supplies use good components to start with. As a general rule, the bigger they are physically means they have big high power rated parts inside.
Thanks. My build requires about 400wat. After reading your comment, I'm gonna go with Corsair CX650
That's really a nice explanation for this topic. I don't know why my cooler master broke the 12V rail with my 780 classified running far cry 3 !! I tried to fix the PSU, replaced the 12V rail mosfet, worked but the PSU has a leaking current that later broke the 780 classified and now my 1070 ti is nearly broken .. the fans stopped. I must replace that PSU and put it for later troubleshooting and buy a new one.
@@jasonstark8380 cx series is very bad.
@@jasonstark8380 Your 650 if 80+ cert. is actually 520w.
Thank you so much for not being dumbass. I don't think some people understand it is better to be efficient and go above and beyond recommendations rather than attending to OCD and matching power supply output numbers with system recommendation numbers.
The only reason I have an 850 watt power supply is because the 750 watt version was only about £4 cheaper xD
+Travis Law (TheLawModzz) Jesus, what are the specs?
if i wanna use a 1080 in the future i have to upgrade my 750W psu to at least a 850 or 1000W for it to work properly
Ali Saeed why...?
my computer currently uses upto 700W when i am rendering or simulating (my university course requires simulations so...) so if i wanna upgrade to a 1080, i will need more power
+Travis Law (TheLawModzz) what do you have crossfire r9 390's?
Modular power supplies are good for cable management
You win the prize!
Very much so.
I find that cable management is next to impossible without one.
What about custom cable mods?
It's not too expensive.
True, having more watts is NO guarantee of more fps.
But having a supply that has more available wattage than you computer needs is ONE guarantee that you won't be stressing it out. It is a stressed power supply that will fail. I have repaired MANY power supplies (AAMOF, I'm working on one right now - too), and ALL of the failures are due to just one reason: too much heat due to over-stress equals blown components.
. . . . It is just that simple . . . .
Buy/use a larger supply than your system needs; and it won't fail.
Unless it was a crummy quality supply to begin with . . .
That and so if you ever make any future upgrades I'd highly reccomend buying a power supply with 30% more of what your system needs
@@myklesingh8253 A*V
There's a few factors that went into my decision to get a 1000 watt psu. 1, due to an insurance settlement, I had an insanely huge budget (at least in terms of general consumer components) while building my current rig. 2, the pc I was building was going to be used in my home recording studio, and as such, fan noise was important enough that I was already getting Be Quiet silentwings fans on a watercooling radiator. 3, I have a distinct childhood memory of the family computer's motherboard putting on a giant light show due to an insufficient power supply (Yes kids, this was before anybody started intentionally putting lights on motherboards).
ok
@coolthingythethird985 ok
POWEEEERRRRR!!!!!!!! UNLIMITEEED POOOOOOOWWWWEEEEEEERRRRRRR!!!!!!!!!!!!
GIMMMEEE MOOOREEE PPOOOWWAAAAAAAHHHHH!!!
Only a sith deals in absolutes
+TinchoX gimme gimme More, gimme More, gimme gimme More.p p
+zq Well I'm a sith then. I'm evil, it suits me.
what I said when asked why I was buying a 650w PSU for a gtx750ti and c2d e8400...
"Buy a good power supply"
Standing right next to a CX unit....
Here's to hoping my refurbished CX750 won't fry everything I own before my next upgrade :'^)
wait, what's wrong with a CX power supply? Are they Corsair's entry-level unit?
Gordon Rammstein Corsair PSUs are nothing but rebrands, some good, some shitty.
All CX green label units are shitty, all gray label CX units ASIDE from the 750W unit AFAIK, are fine. The 750W gray label is literally just a rebranded green label with the same mediocre at best components.
Regardless, you shouldn't be using these units for higher-end builds, wattage is mostly irrelevant, just get a good quality unit unless you don't give a fuck about the build.
Dylan
oh, i've got an RM750 already, i was just curious.
I have a CX500 since May 2012, still working perfectly and never got any component fried. Replaced it in my primary pc with a CM G550M for modular cables
With the 40 series and Ryzen 9 7950x.....yeah this didn't age the absolute best.
all you need is over 9000 watt PSU and some RGB lighting.
I have a 250 watt power supply. Bitches, don't be jealous.
is it 80+ tho
but can it run crysis?
Mine is 600w
mine 750
850 here!
Damn I guess that anti-matter reactor power supply I got was slightly over kill then.
Michael Vinson I thought my nuclear power plant was enough but when I overclocked my gt 210 the whole thing exploded
fuck i guess my antimatter drive core was too little
Spectrum i heard about that you live in cheyrnoble right?
Not anymore he doesn't
Antimatter reactors uses more power to cause the reaction than the power it geanerates.
BUT BUT.... FUTURE-PROOFING?
Cezar Returns parts are getting more efficient so technically future proofing would be lower wattage lol
Cezar Returns you're stupid the "future" you're talking about is will be more effecient and will need less and less wattage
seems to be all intel tries to improve on. so many people with 2500k or 2600k and theyre not wrong to keep them that long.
I guess by future proofing he means getting, say, another graphics cards or a couple of more fans or liquid cooling.
power supplies don't last too long any way
This has aged like milk going off your guys' videos of the RTX 3000 launch lolol
But...But ....But I need to run 23 fans XD
Then Your PC must be an ice age.
+Tiemo B tru
***** Yep. AMD's CPUS are good at cookin' bacon and shit.
my Intel i77 5820k is pretty hot, I guess I neeed to reseat my Noctua D14 tower =( or I just didn't get lucky
they stuill dont draw much. btw what are u doing with 23 fans? I have 8 on a 4k gaming setup.
I need 1.21 Gigawatts...where could I find a psu rated for that ?
Spockeli Build a nuclear reactor in your garage. Or put a lightning rod on your house.
The first one has been done. I am sure it would not power a PC.
To use it on ur brain? Even that idea would fail with you.
Here's a better solution: Clorox Bleach; keeps your conscious clean like ever new... 😊
what the hell is a gigawatt?
1000 kilowatts. So... 1000000 watts
I'm so glad I went with an 850W (thermaltake toughpower grand). I bought it like 4-5 years ago and it was a rare display of foresight. I had a very average and dated budget AMD gaming rig at the time, now I've gradually upgraded everything besides the PSU, literally, including case and periphs. Nitro+ 5700XT just arrived today (no idea wtf I'm doing here instead of installing that... delayed gratification I suppose).
Replaced FX-8320 AM3+ system (had XFX R9 290 GPU, gave that to a friend and built his first rig) with R7 2700x, Crosshair VII Hero and 3200Mhz TridentZ. That 8320 deserves some recognition, served me well for a very long time. Motherboard even longer because AM3/AM3+ were compatible. I even ran VR with _that_ setup, just to try it while upgrades were shipping, and it worked! Nitro+ RX-580 will be torn out in a minute for the 5700XT. I was very happy with the Sapphire so I stuck with em (plus it's the best looking IMO). Swapped Wraith Prism for Corsair H115i, added case fans and some RGB (yeah I know, _wannafightaboutit?_). Went from 1x 1080p to a 1440P monitor, then 2, then 3 for sim racing, then Rift CV1 for the same. Believe it or not, the RX-580 actually did pretty good with 1440p and VR, (at least I can be certain I was GPU-locked with the 2700x). Can't wait to try the 5700 though, never owned a GPU so close to "top tier." Also added a 240GB m.2 boot drive and 525GB Crucial MX-300 SATA SSD game drive to go with the 256GB Crucial MX-100 and 800GB + 1TB WD storage drives that I've had for 5+ years. The MX-100 is down to 85% life in HWinfo so I'm going to take it out and use it for a portable/test bench drive. Probably replace it with another 525GB MX-300 and try RAID because I've never done that. Probably RAID 0 array for the SSD's and RAID 1 for the HDD's.
So I'm pretty sure I didn't need this PSU at first, but over time I've been so grateful for the headroom, never had to question it. I'd have to say 750-850W is the perfect PSU sweet spot. I gotta be getting close to peak efficiency now.
Whatever fuck this, I'm putting my new GPU in.
Like you said it’s always good to have extra headroom for upgrades down the line so I think it’s not a bad investment to get even a 1200w power supply considering you’ll probably need more down the line.
@@Yohannesburg Well it's true, but there can be a limit to how much headroom you want. PSU's work best when they're between 40-80% load, so there is a sweet spot depending on each use case.
I just found this post on tomshardware. He seems to be saying that as long as you get one that's rated "80+ basic" or better, you don't need to worry about load too much:
forums.tomshardware.com/threads/power-supply-efficiency-myths.194370/
A good rule of thumb might be total system power requirements times two. In terms of system reliability, a little redundancy goes a long way.
Why would you get 3 x 80mm fans? You mad?
Yeah - my guess would be - O I want some really high end stuff, and I want fans, and I want it to recommend UNDER 400 watt, just to drive home my point!
So if it would be 405W, the whole story would change drastically?
to be fair, A lot of people don't buy fans that don't come with their case, so either way it wouldn't change the fact, but either way people would buy a 500w psu for that system
for a 240mm radiator of corse
+apologiz tome no power consumption and total power are diferent. your power supply have a 1000w capasity, your power draw is only 350w, so you have 650w in reserve for upgrades and whatnot.
I dont think high wattage power supplies are stupid. I think Trump supporters are.
So clever...
They arent. Hillary would be worse.
Would you rather killery?
Completely relevant to the video and totally not fishing for responses.
Fucking pathetic
you're a fucking leftist moron.
The Corsair 2500W KingPower External power supply with surge protection and full spectrum RPG light show is the best. Does your system lag? That's because you need at least 2000 watts for any computer, it will make your computer faster.
RGB also helps with the FPS.
2500w? honestly didnt think outlets could go over 2200 (in the US at least)
@@bradhaines3142 European outlets go to 3680W on 16A breaker, and if im not completely wrong, American 110V 16A breaker goes to 1760W.
@@3DJLab partially correct, the US has a 15A or a 20A, depends on the house
@@bradhaines3142 Ok so not far off. 1650W 15A or 2200W 20A breaker. My servers alone would pop those breakers on full load :/. Entire server rack consumes about 3200W on full load.
Tech Tips and all related channels are the go to for tech advice. The content you all create is invaluable to today's need to know world. Everything from basic knowledge to high end enthusiast info. I thank you sincerely for all you do
i7 6700k OC 4.6 GHz
GTX 1070 FE OC 2050 MHz
500W 80+ Gold
Just stick to the recommendations... they are more than enough
watt volttage do you have the 6700k at
Carbon Addiction 1.328V I think
thanks fam
4.5 GHz at 1.29. We both got good ones.
no you have any idea what the total draw from the wall is by chance?
I love my new build i have a pentium 4 cpu 1 gb of ram and a gt 210 gpu but it runs great as i have my 1400w psu in there with a very nice case it is very nice to power my house with it daily love it.
Never knew Yasuo scaled with Pentium, and the 1400W replaces Statik; I presume?
Yasuo you must be fun at parties. . !
Erm
Cough
Bad
Pc
Man that's a sweet setup!!
Sick rig
I've been buying 850W power supplies since probably my second build (when it actually started to matter), even though my system builds haven't gotten close to that ceiling. I typically opt for this just so I have some overhead in case its needed, but also that my PSU isn't hitting a consistent max draw over time. Whether this gives me more life out of my PSU or not, I couldn't even guess. All I know is that aside for a rare hardware fault, my PSUs haven't been the cause of system death.
Interesting video, thanks. When I was in the build process, I had picked a 550w PSU. Out of curiosity I looked at higher wattage PSU's of the same make/model and, at that time, I could get the 750w PSU for $20 less...I know I'll never need that much power, but $20 is $20.
I remember when ASUS had a online PSU estimator, and it always said a budget PC needed 900+ Watt..
LOL never trust the brand that sells you stuff and offers a tool to help u overbuy.
Hey maybe you tech guys can help me,
My wifi is worse in my room, is my fan in my room blowing away and corrupting the data particles?
All my google searches are slow in my room.
Assuming this isn't a joke (90%) chance it is, no, fans won't do that. Most likely the walls are blocking signal and the wifi point probably isn't broadcasting at a high enough power level.
or you just have dial-up
***** How is this a joke, I have to learn someday.
When I bring my laptop in the car and drive down the road because of all the wind at 50 mph,
My wifi completely disconnects and i have to drive back home to connect WTF.
Should I contact my wifi people about this or what because its pissing me off?
MBW Oh, you actually were serious, wind doesn't have anything to do with Wi-Fi, never has, never will, and you may have noticed that you have a tower that has a lot of wires coming out of it, that's called a router, it basically houses your connection. When you get too far away from it, you disconnect.
MBW
lol this is what I get for feeding the troll.
I love the freely donated* by a friend, Corsair HX620w Modular Power Supply, it more than meets my current supply needs easily and after checking on the CoolerMaster calculator, it will happily save me from buying a new PSU for my build as it's more than good enough for the upgrade. Sothat's some money saved, still got some old parts to sell though, like some Patriot gaming RAM....
*thanks to Steeley for the Power Pupply and the 2 "broken" matched pair of Samsung 22" DualSync Monitors that cost me 20p in capacitors and half an hour soldering both (same fault) to make like brand new!
My current setup is beauttiful though, even if a little underpowered, CPU-wise.
Here, in 2023, you are wrong, we need 2000W power supplies to get ready for the RTX 5099 Extra TI Ultra
Welp, i was gonna go to bed :P
Same
well, i just woke up from bed :P
Pfft... Sleep.
But what a nice bedtime story :)
It is morning already.
I have a 3,000 watt power supply for my computer. it has an Intel Pentium and a 30 gb hard-drive and 1 fan. but I feel like i don't have enough power :/
please help
+naztheman4u Take the fan out, that way you save all that precious power, besides, the power supply has a fan already so you don't need two.
this is like anorexia
yeah you need to connect it directly to a Nuclear power Plant. Problem solved.
+That's sadio, mane also download some RAM
how many wats do I need to be safe for overclocked i9 xe, 2gtx 1080, 4 16gb rams, samsung 960 ssd, rampage vi extreme board and the rest of the system?
Intel in 2020:
I'm about to end this video's whole career.
Just before I was going to bed...
After staying up watching for 20 mins.
Your picture and your phrase "Going to bed" Suggests that you may not have been going to bed to sleep... :D *wink*
sleep is for the weak my friend
Hahaha same
+cougerfilms No, sleep is for people who dont want to die from sleep-deprivation.
Mason D Only the weak die from sleep-deprivation
a platinum 650w PSU is probably more than enough for 90% of the builds out there
lol, get outta here with your "platinum" bullshit.
Any 80+ certified PSU is more than enough for 90% of the builds out there. At less than half the price of your "platinum" rated ones.
Using a Corsair HX1000i with a GTX 650 Ti Boost.
***** How was the smell of burning money?
Skeletor Jopko well, i'm using a corsair gold rated 650m since i don't like burning money, but a platinum one is probably better if you want to future proof the build for fatter gpus sli configs.
balderm The only time Platinum gives you any real tangible benefit over Gold rated PSUs is if you're running your power supply at over 90% load constantly, which isn't advisable under any circumstances.
So I think you're alright.
RTX 4090Ti: Aww YES YES I do see why you do be interested in that!
Heh its funny coolermaster's calculator said I needed a minimum of 992w for my fully loaded hp xw6600, and recommended their 1200w power supply :)
i have a 750 watt PSU with a zero rpm mode. never heard the fan kick. not once.
Even playing demanding games? Maybe your other fans mask the noise.
That's one thing that always annoyed me with people following the "Chose your PSU wattage as low as possible".
The rig of my wife features a SeaSonic S12II 620W PSU and even under load the fans don't kick in (System pulls 360W from the wall under gaming-conditions).
I recommended this PSU to various people since it's one of the best models out there, featuring heavy-duty japanese components with high life-expectancy.
The first response of someone who followed my recommendation was: "That PSU is so freaking loud, it's louder than my graphics-cards."
Long story short, he bought the 520W version of the S12II and his computer pulled 470W out of the wall when playing games...
If you like silent machines, follow the advice to chose your PSU considering your max-load to be 50%-65% of your total PSU-wattage.
Example: PC pulls 360W from the wall when under gaming-load: PSU should be between 550W and 720W.
Kind regards,
Meta Custom Computers
Exactly.
corsair 750i user here, i can kinda confirm. Didnt really paid attention to it.
Is it G2? 🌚 I had to kick my psu cuz I thought the fan had died 😂
My power supply runs all my stuff. Not sure why people feel the need to connect their computers directly to a nuclear power plant.
FastZebra Zoom they might like atomic fision ? xD
+Adrian Chirita True! ^.^
too make up for their small weiners.
+cool beans Also true.
FastZebra Zoom I don't understand why you would want so much power in a supply, as shown in the video, however when I bought my pc setup I bought a 800 watt power supply when I only needed a 600. My thoughts at the time would be if I wanted to upgrade with sli or something of the sort
AAah... I remember back in the old days when I bought a 400w psu for my Intel Sempron cpu on socket 478... and that was considered a powerful psu!
*RTX 4000 series has entered the chat*
o use a potato to power up my computer
Mr Patato My computer is a potato, it powers itself.
+Lord AJ u won the internets for tonight! thank you!
Mr Patato I use telecanisis
OH MA GOD CAN WE BE BEST FRENDS
Same mate. Heaps good aye
Unlisted Party!
howd you do this?
How?!
+Nick Kuzniar What he do
+ub3rl337z4ur Forums
The highest point of psu efficiency is at around 50-60% of load. So it is not bad idea to have psu with 200-300W more then you system consumes at peak
This didn't age well
How come?
@@hhhhh-kj8dw Because of the recent RTX 3000 series and RX6000 series launch. They are known for thir very high power consumption and a 850 Watt power supply is now a given for their higher end models
Sebastian ah ok, thank you for explaining!
Learned this at work back in late 2011. We were assembling a new machine, with the at the time new LGA2011 x79 with i7 3930k, 16GB 2133MHz ram and 4 evga GTX 670 FTWs, which was the most powerful consumer card at the time, running several layers of a 16k wide png image with hardware accelerated blur and 8 outputs at 1080p 60fps. GPUs heated up to around 80°C. Wattage meter between the machine and wall socket read just over 400 watts. I was quite surprised.
YEAHHH BOIII I HAD A 4GB 670 FTW, shit was dope
that + 3570k @ 4.84ghz......ahh the memories
@kingofallman That's obviously a common sense, i don't think that's need to be telled lol
Get the highest wattage power supply you can buy because you never know when you'll all the sudden want to build a cryptocurrency mining rig
Thought this was ironic till I found myself in this situation...
my power supply has a 10 year warranty, i bought a 1000 watt to handle any type of pc i may build, including custom loops. i dont need it all now, but i might within 10 years
I'm doing the same thing. I'm spending a big chunk of change of a case, PSU and soft tubing water loop so I can save money in the long term. I'm just getting a giant case with good cooling fans and a good track record.
why on earth would you keep a power supply for 10 years?
@@jamestor6700 My 10 year old PSU is running my current gen Ryzen system with ease. Why on earth would you throw away a working part?
I use a kill-a-watt device to monitor power draw and it's kind of shocking how little power my system uses compared to the recommended wattage.
Power supplies need to be properly loaded. If you overload one, that's a problem. If your UNDERLOADING it, that's also just as bad actually. 50% minimum and you shouldn't exceed 85% to 90%
You can get a Power Supply that actually has functions built-in for underloading it like EVGA P2
So, load my system with another graphics card and a couple more hard drives eh? Not bad.
Didn't they do testing to show that even at low loads a high end PSU is still fairly efficient?
My 850 watt PSU can throttle down, including shutting the fan right off. Some older PSU cannot do this.
This was a rule of thumb a few years ago, but has been generally overshadowed with more efficient PSUs in the past few years. You can safely "underload" a higher quality PSU for hours on end and be fine. It still isn't something you should strive for, though, because you're essentially burning money away getting a higher wattage PSU that you didn't need.
the rent is too damn high
You'll get your rent when you fix this damn door.
Loved this video! Wish I had seen this before my friends pushed me to get a 1200W power supply for my PC...maybe I need new friends 😂😂
Here we are in the modern age and I'm upgrading from my 3060 which runs fine on a 600w psu with my current components to a 3090. The difference in the power draws on NVidias website is 170w for the 3060 and 350w for the 3090, so 180w difference. Plus Linus's review of the 3090 tested that it can run a peak draw of 450w... So not even a 850 watt power supply would not be enough as it could get dangerously close to that 850 ceiling. So I just bought a 1,000w psu and called it good, at least I won't have to worry about it getting underpowered and losing performance or damaging anything.
You should mention though that 12v amperage is most important. Most cheap PSUs have high wattage but lack amperage, it just so happens most high quality, high wattage PSUs have great amps. Probably where the myth comes from people frying PSUs,boards,gpus...ect with low amp power supplies
I think it's worth noting that the wattage is just the voltage times the amperage, these crap power supplies have plenty of amps, just in the wrong areas, such as 5v, 3.3v and on the wrong 12v rail if they are a dual rail design (:
Brosby And Noisey ass voltages too. They stress themselves and every component they hook to, the VRMs have to work harder and the Caps rack up the mileage. And efficiency suffers. This video is stupid as hell
I remember the days before we had good single rail PSUs, I still have a quad rail high amp 1000 watt rosewill from like 10 years ago still kicking strong to this day.
It's not that they lack amperage per se. Any individual rail is easily capable of delivering full total 12v wattage/amps. Multi-rail is a safety feature where each rail is limited to about 20 amps before the PSU just shuts off from over current protection. Many more amps than that on a single rail, if short-circuited, and the automatic power cut fails to kick in, could end up going up in flames ;)
Still, providing too few of these rails for low overall 12v wattage delivery within the safety cap, does present a problem in some cases. And of course, if it's a cheapo, they will intentionally shortchange on this to make it harder to try to fully utilize the rated power delivery ;)
my PSU is almost 9 years old, it's so old don't remember the brand, the only thing i remember is the max power output 700W
i'm like "fuck, so my 750 watt PSU is totally overkill..."
*goes on the cooler master psu calculator and let it do the math*
==> recommended psu wattage : 788 Watt... Like seriously?
try the be quiet one its pretty accurate
788...
u use titan xs or old cards like 9800gt?
actually a highly overclocked 980ti on water and an i7 2600 @4.5
i messed up because i the first time i did with 4.7 (which i can't get) so it only sais 778 watt
Watt! Thats too high!
+Petitjean Gilles Hahahahahahahahahaha thats the fakest shit i have ever seen... It should be at max 450-500 watts at full load
Just ran a PSU calculator on my current decade old tower components and on the parts I'm considering to upgrade too, and it came in over 80W lower. So I believe this is very true. Glad I didn't go crazy when I bought the new PSU recently.
Funny how they used a 1kW power supply in their SLI testing or whatever involving the RTX 3090 or RTX 3080 and then they even said "Well, go 20% over NVIDIA's recommendation(1200W) to be extra safe."
So, you realize that the video is 5 years old right ?
You just need to get a quality one. making sure the amps are enough to power what you want to install
my rig needed 345w at least to run I got a 550w PSU and I'm happy with it
Thats a good balance I think, pretty sure the 345w is considered 100% load, how often to people do that? Soo I think your good to go.
I bought a 1 kW PSU (a few years ago) for 3 reasons.
1) It was on sale for about what a normal 600 W PSU would normally go for.
2) It had modular cables, which I really wanted because my case is a bit cramped.
3) I wanted to never worry again about whether my PSU is beefy enough, no matter what I put in my personal-use rig in the future.
I figure that as long as it saves me from having to buy another PSU someday if what would have been the economical decision came up short, I've broken even.
I over spec' PSUs for two of the reasons you mentioned - puts it in the middle of the efficiency curve and a low enough percentage loading that the fans are inaudible. There is also the arguement of less stress on components and so less chance of failure and/or short service life - just need to give them a clean out every few years.
The relatively small difference in cost, when building a full system, is negligible compared to a 'close enough' power rated PSU.
ancient corsair vx 550 still chuging along, outlasted: 8800 gt,gtx 260 core 216,gtx 670,and now pushing a gtx 970 :)
Ugh. So, LTT did some Internet research and came up with this video. I'm done with this channel.
its not a bad video its common info yes but many people dont realize most computers dont use nearly as much power as people think
LTT did work so I don't have to. Know I am better prepared to make my own system and understand further google searches
I had no idea about this. I just bought a 1000watt for my new computer that i built, i had no idea it didn't need that much. I just thought "hey.. it shooouuulld be enough:
You knew it. I knew it, so what, im not a dumb fuck like you, thats the difference. I knew it, so i moved on without hating on anyone. Is it so hard to NOT leave hate ANYWHERE ?
What did you want him to do, look it up in an encyclopedia?
hmm? was hoping this video would have results of it's wattage usage for each different power supply.
I went to the Corsair PSU Finder site. Put in my components and it recommended a 1200w PSU. Which makes sense and when I measured the used wattage it was just over 1k.
the wattage is nominal. just cuz your car can do 200kW doesn't mean it always produces 200kW power
Valto mäkelä oops yeah XD
The truth has been spoken
CZcams STOP CHANGING YOUR SHIT FIRST THE COMMENTS NOW THE SUBSCRIPTIONS BOX
"I'd like to play a game." -Google, probably.
The subscriptions box has always been junk, which is why I mostly view CZcams via an app called "MyTube!"
Your best efficiency is achieved around the 50% curve of your PSU. It always makes sense to get a larger PSU than you need. Especially when some high-end GPU's can suck down 300-400 watts alone, under load, OC'd.
I rarely use anything less than 750w, even in my budget builds. People upgrade PC's...Who wants to buy a new PSU, just because they decided to toss a new 1080Ti into their existing PC?
it was like that for me
had a gtx 980 ti hybrid + 6700k 4.6ghz
threw in a 1080 ti FE on the same PSU 650 watt 80+ gold corsair or someothersuch company.......
anyways all goes well until i put in a new ssd cuz i fucked windows with torrents and needed a sterile drive for a new install thought might as well buy a 256gb
upgraded to a 750 watt 80+ gold forgot the name already but 0 issues so far running the old OC's all is good
nextt time i'll definitely get 1000w+ for longevity and efficiency
@@AdolfHitler-xp1nx Wut? U saying all was well until u put in that new ssd? Ssd's use almost zero watts! If ur old psu handled the change from 980ti to 1080ti perfectly, then it's proof that the psu was literally gold! There's zero chance a small ssd threw ur psu over the limit, ha! U done f*ck it something else.
@@MaximusAdonicus well i was at 99% usage and the ssd pushed it over that point i guess
Got an 8700k 5ghz all cores + titan Xp + 32gb ddr4 3333mhz ram with that 750w and 0 problems :)
@@AdolfHitler-xp1nx Wah, 99% usage of wattage? :O In that case ur psu was close to explosion! And I just checked: an ssd uses only 1-4 watts! You do have a power hungry system thou... Maybe there was a wiring issue... Or the system truly was on its edge.
@@MaximusAdonicus idk actually lel
My prebuilt computer came with a 480w PSU that was terrible. Granted I knew buying it that was one of the major components they skimped out on, but I wasn't expecting to need to replace it only 5 months later. It got to the point that whenever I turned on any task that required it to draw power it would pop my circuit to that part of the room. This was so bad it triggered on Chrome.
Yes Luke, I knew all that already, but... I'm super-glad that You've made a video about this for people who didn't!
KUDOS :)
0:07 I'm starting to really like this guy. Asinine is just the exact word to describe every single one of linu's projects.
Better Linus than me.
I love that this popped up on my feed after LMG posted a picture of the new AX1600i on Facebook m
Couple of points.
I'll often go for more than I need in a power supply in hopes of getting a little bettr quality in the components. This is because the power supply is one of the more aggravating parts to replace and when the power supply goes out it has a nasty habit of taking other parts with it. A good 750 or 850 doesn't cost that much more than a cheap 500.
And some features that you may want may only be available on the higher powered PSU.
if they are so stupid why do you use it
They don't. They either use it for projects in which it is needed (7 gamers 1 cpu for example) or for looks.
Do you know who Linus is? Overkill everything brah.
I suppose it's because the cost weren't an issue for them. Manufacturers sponsor the psu to them they have to put it up on their builds to showcase it.
***** Man, people should use you as an example for communication skills!
Why the aggressiveness? I mean, come on...
Shhh..
Well this aged well. 3090s in sli
very xDD
Love my 1000 Watt Power supply, never have to worry about not having enough power.
I bought the AX1600i for three reasons. One absolute future proofing, it has hands down the best regulation and power quality of any supply at almost any wattage, and I got it on sale for $339 which is an outstanding value. My system pulls a bit over 500w at full load so I’m running it at around 30%.
Still using my Corsair HX620 for 10 years now
Cooler Master calculator actually says I need my 1000w PSU. lel crossfire 290s
LOL mad overclocks???
haha what the fuck? Is that for real? Damn.
Exactly. +LinusTechTips needs to stop spouting generalized shit and reducing complex things like this into 5 minute bullshit. I legitimately NEED 1000W for my system because I have 2 r9 290Xs and a FX 9590 which pulls +900W of power. I've measured it.
tiredofmakingupnames yeah each card has a TDP of like 400W under load
rocksntwigs
Holy shit, you should probably stop using AMD lol. Or at least invest in more efficient cards like the fury X or the nano. That is a lot of power for just gaming.
Keep in mind that buying a low rated power supply could cost you a lot of money in the future when you go to make a big upgrade and don't have the wattage for it. Another thing to note is that you could end up reusing a high wattage (good quality) power supply in future builds because the degradation wouldn't be enough to limit you.
Why have Luke video's become less frequent? Thumbs up even though I didn't learn anything, just for Luke and a good video.
"power is power" I think Cersei once said that
This video aged about as well as raw unrefrigerated chicken
I have a 300 watt power supply, I'm going to install a GTX 1060TI single fan edition. It's recommended wattage is 400. Will it be good if I put it in my desktop?
2016: High watt PSU is stupid
2022: Require high watt PSU
yet every build on this channel has a 1k watt plus power supply in it.
Hi. Linus, Luke the gorgeouss Maxine and the rest of Linus Media.
Thanks for the wattage calculator (Coolemaster thanks too- no more guessing).
knew it already (IT pro for decades here) but it deserves the thumbs up for those that did not to learn from.
Thanks so much man! Have a great week!